Laurel Alena?

Pros:
- elle sound at the ending
- My grandfather is fond of the name
- It's already legally mine, therefore I already feel partial to it
- Nicknames of Ari, and Elle.
- L initial

Cons:
- Only two syllables
- Also my great-aunt's name, who I'm named for. Which takes away from the personal feeling
- I'm not sure it particularly fits me
- Has a bit of a boring air and feel to it I think.

Also, you mentioned that you share a name with your great-aunt. I also like name connections. When you stop to think about how they lived their life and the things that they've gone through, you don't feel so alone. The world has a way of bringing you to your knees. So when I hear the name I share with my grandmother, I feel a lot stronger. As though nothing could bring me down. Try as they may. Just a thought.